28 lines
864 B
Plaintext
28 lines
864 B
Plaintext
Demonstrations of loads, the Linux bpftrace/eBPF version.
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This is a simple tool that prints the system load averages, to three decimal
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places each (not that it really matters), as a demonstration of fetching
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kernel structures from bpftrace:
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# ./loads.bt
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Attaching 2 probes...
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Reading load averages... Hit Ctrl-C to end.
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21:29:17 load averages: 2.091 2.048 1.947
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21:29:18 load averages: 2.091 2.048 1.947
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21:29:19 load averages: 2.091 2.048 1.947
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21:29:20 load averages: 2.091 2.048 1.947
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21:29:21 load averages: 2.164 2.064 1.953
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21:29:22 load averages: 2.164 2.064 1.953
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21:29:23 load averages: 2.164 2.064 1.953
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^C
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These are the same load averages printed by uptime:
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# uptime
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21:29:24 up 2 days, 18:57, 3 users, load average: 2.16, 2.06, 1.95
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For more on load averages, see my post:
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http://www.brendangregg.com/blog/2017-08-08/linux-load-averages.html
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